https://community.esri.com/t5/arcgis-pro-questions/raster-cell-values-not-summing-correctly-after/m-p/1187542#M56700 <P>Hi there,&nbsp;</P><P>I have a series of individual raster layers which have been merged into 4 "group" (different category for each) rasters using Mosaic to Raster.&nbsp;</P><P>I am now merging the 4 group rasters into a final raster which sums all the pixel values.&nbsp;</P><P>All my rasters are 16-bit signed and the individual rasters sum correctly to the value of the 4 group values.&nbsp;</P><P>However in the final mosaic to raster (summing the 4 group rasters), there are random discrepancies of pixel values not adding up correctly when clicking on areas across the surface. I have checked that they are all assigned the same pixel type and are all snapped to the same reference raster.&nbsp;</P><P>Any pointers on what might be going on here?</P> Tue, 28 Jun 2022 21:25:13 GMT Hayley 2022-06-28T21:25:13Z https://community.esri.com/t5/arcgis-pro-questions/raster-cell-values-not-summing-correctly-after/m-p/1187542#M56700 <P>Hi there,&nbsp;</P><P>I have a series of individual raster layers which have been merged into 4 "group" (different category for each) rasters using Mosaic to Raster.&nbsp;</P><P>I am now merging the 4 group rasters into a final raster which sums all the pixel values.&nbsp;</P><P>All my rasters are 16-bit signed and the individual rasters sum correctly to the value of the 4 group values.&nbsp;</P><P>However in the final mosaic to raster (summing the 4 group rasters), there are random discrepancies of pixel values not adding up correctly when clicking on areas across the surface. I have checked that they are all assigned the same pixel type and are all snapped to the same reference raster.&nbsp;</P><P>Any pointers on what might be going on here?</P> Tue, 28 Jun 2022 21:25:13 GMT https://community.esri.com/t5/arcgis-pro-questions/raster-cell-values-not-summing-correctly-after/m-p/1187542#M56700 Hayley 2022-06-28T21:25:13Z